-- File:	TDocStd.cdl
-- Created:	Wed Apr  7 11:01:24 1999
-- Author:	Denis PASCAL
--		<dp@dingox.paris1.matra-dtv.fr>
---Copyright:	 Matra Datavision 1999



package TDocStd 

    ---Purpose: This package define  CAF main classes.
    --            
    --          * The standard application root class
    --          
    --          * The standard document wich contains data
    --          
    --          * The external reference mechanism between documents
    --          
    --          * Attributes for Document management
-- Standard documents offer you a ready-to-use
-- document containing a TDF-based data
--  structure. The documents themselves are
--  contained in a class inheriting from
-- TDocStd_Application which manages creation,
-- storage and retrieval of documents.
-- You can implement undo and redo in your
-- document, and refer from the data framework of
-- one document to that of another one. This is
-- done by means of external link attributes, which
-- store the path and the entry of external links. To
-- sum up, standard documents alone provide
-- access to the data framework. They also allow
-- you to:
-- -   Update external links
-- -   Manage the saving and opening of data
-- -   Manage undo/redo functionality.
-- Note
-- For information on the relations between this
-- component of OCAF and the others, refer to the
-- OCAF User's Guide.

uses 
     Standard,
     CDF,
     CDM,
     PCDM,
     MDF,
     TDF,
     TColStd,
     TCollection,
     Resource

is


    ---Purpose: standard Application/Document
    --          =============================

    
    deferred class Application;

    class Document;

    class Context;    

    
    ---Purpose: External reference Attribute
    --          ============================
	          
    class XLink;
    ---Purpose:   This attribute,   when  setted,  store  an  external
    --          reference .  An external reference is a memorized link
    --           between attributes   wich  originate  from  different
    --          documents.
    
    class XLinkIterator;
    ---Purpose: This is an iterator giving all the external references
    --          of a Document.

    class XLinkTool;
    ---Purpose: This class provide services to set, update and perform
    --          external references.


    ---Purpose: Attributes for Document Management
    --          ==================================

    private class Owner;
    ---Purpose:   This  attribute located  at  the  root label  of the
    --          framework contains  a   back reference to   the  owner
    --          TDocStd_Document, providing acces to the document from
    --          any label.  private class Owner;

    private class Modified;    
    ---Purpose: This   attribute  located at the  root   label provide
    --          services to register modified labels in a document.
    
    pointer XLinkPtr to XLink from TDocStd;
    
    private class XLinkRoot;
    ---Purpose: This attribute is  the root of all external references
    --          setted in a document.
    
    class PathParser;


    class CompoundDelta;

    class LabelIDMapDataMap instantiates DataMap from TCollection (Label from TDF,
    	    	    	                                           IDMap from TDF,
    	    	    	    	    	    	    	    	   LabelMapHasher from TDF);

	class ApplicationDelta;

    	class MultiTransactionManager;

	class SequenceOfApplicationDelta instantiates
    	      Sequence from TCollection(ApplicationDelta from TDocStd);	

	class SequenceOfDocument instantiates
    	      Sequence from TCollection(Document from TDocStd);	

    ---Purpose: specific GUID of this package
    --          =============================

    IDList (anIDList : in out IDList from TDF);
    ---Purpose: Appends to <anIDList> the list of the attributes
    --          IDs of this package. CAUTION: <anIDList> is NOT
    --          cleared before use.

end TDocStd;